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3《机械设计基础》试题和答.pdf

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1、机械设计基础试题二一、填空题(每空 1 分，共 30分)1、构件是机器的_单元体；零件是机器的_单元体；部件是机器的_单元体。2、平面运动副可分为_和_，低副又可分为 _和_。3、轮系运动时，所有齿轮几何轴线都固定不动的，称_轮系，至少有一个齿轮几何轴线不固定的，称 _轮系。4、为保证带传动的工作能力，一般规定小带轮的包角_。5、若键的标记为键B2070GB1096-79,则该键为 _平键，b=_，L=_。6、轴的作用是 _。按轴的承载情况不同，可以分为 _、_、_。7、凸轮机构是由_、_、_三个基本构件组成的。8、在曲柄摇杆机构中，当曲柄等速转动时，摇杆往复摆动的

2、平均速度不同的运动特性称为_。9、在蜗轮齿数不变的情况下，蜗杆的头数越少，则传动比就越_。10、齿轮啮合时，当主动齿轮的_推动从动齿轮的_，一对轮齿开始进入啮合，所以开始啮合点应为 _与啮合线的交点；当主动齿轮的_推动从动齿轮的_，两轮齿即将脱离啮合，所以终止啮合点为_与啮合线的交点。11、滚动轴承内圈与轴颈的配合采用_制，外圈与轴承孔的配合采用 _制。二、判断题(每题 1 分，共 10分)1、基圆以内有渐开线。()2、极位夹角是曲柄摇杆机构中，摇杆两极限位置的夹角。()3、螺纹联接是不可拆联接。()4、机构处于死点位置时，其传动角等于90。()5、凸轮轮廓的形状取决于从动

3、件的运动规律。()6、蜗杆传动一般用于大速比的场合。()7、楔键的两侧面是工作面。()8、普通车床变速箱内齿轮的润滑方式时油雾润滑。()9、滚动轴承的基本额定动载荷C 值越大，则轴承的承载能力越高。()10、带传动的弹性滑动是不可避免的，打滑是可以避免的。()三、选择题(每题 2 分，共 20分)1、为使机构顺利通过死点，常采用在高速轴上装什么轮增大惯性？()A、齿轮B、飞轮C、凸轮2、为了使相啮合的一对齿轮其强度和寿命接近，通常()。A、齿轮的硬度大于小齿轮的硬度B、小齿轮的硬度大于大齿轮的硬度C、大、小齿轮的硬度相同3、下列哪一种普通平键用于轴端。()。A、A 型B、B 型C、C 型4、渐

4、开线在基圆上的压力角为多大？（）A、0B、20C、905、下列螺纹用于传动的是()。A、梯形螺纹B、管螺纹C、普通螺纹6、在下列平面四杆机构中，无论以哪一构件为主动件，都不存在死点位置()。A、曲柄摇杆机构B、双摇杆机构C、双曲柄机构7、在螺栓联接中，当有一个被联接件较厚，而且需要经常拆卸时，宜选用的联接类型是()联接。A、双头螺柱B、紧定螺栓C、普通螺栓8、用来传递双向转矩的一对切向键，在轴上相隔多少度为宜?()A、90 120 B、135 150C、120 1359、带传动的主要失效形式是带的()。A、疲劳断裂和打滑B、磨损和打滑C、磨损和疲劳断裂10、当凸轮机构的从动件选用摆线运动规律时

5、，其从动件的运动()。A、将产生刚性冲击B、将产生柔性冲击C、没有冲击四、简答题（每题 3 分，共 12 分）1、简述齿廓啮合基本定律。2、说明螺纹连接的基本类型及应用。3、轴上零件的周向及轴向固定各有哪些方法？分别适用于什么场合？（各举出两种及四种以上方法）4、说明带的弹性滑动与打滑的区别。五、计算题（共20 分）1、说明机构具有确定相对运动的条件，并判断机构运动是否确定？（6 分）2.3 计算图示平面机构自由度；机构中的原动件用圆弧箭头表示。文档编码:CT4A5C9J3P7 HP8T1A1H10B4 ZU4R2Y9A2N10文档编码:CT4A5C9J3P7 HP8T1A1H10B4 ZU4

6、R2Y9A2N10文档编码:CT4A5C9J3P7 HP8T1A1H10B4 ZU4R2Y9A2N10文档编码:CT4A5C9J3P7 HP8T1A1H10B4 ZU4R2Y9A2N10文档编码:CT4A5C9J3P7 HP8T1A1H10B4 ZU4R2Y9A2N10文档编码:CT4A5C9J3P7 HP8T1A1H10B4 ZU4R2Y9A2N10文档编码:CT4A5C9J3P7 HP8T1A1H10B4 ZU4R2Y9A2N10文档编码:CT4A5C9J3P7 HP8T1A1H10B4 ZU4R2Y9A2N10文档编码:CT4A5C9J3P7 HP8T1A1H10B4 ZU4R2Y9A2

7、N10文档编码:CT4A5C9J3P7 HP8T1A1H10B4 ZU4R2Y9A2N10文档编码:CT4A5C9J3P7 HP8T1A1H10B4 ZU4R2Y9A2N10文档编码:CT4A5C9J3P7 HP8T1A1H10B4 ZU4R2Y9A2N10文档编码:CT4A5C9J3P7 HP8T1A1H10B4 ZU4R2Y9A2N10文档编码:CT4A5C9J3P7 HP8T1A1H10B4 ZU4R2Y9A2N10文档编码:CT4A5C9J3P7 HP8T1A1H10B4 ZU4R2Y9A2N10文档编码:CT4A5C9J3P7 HP8T1A1H10B4 ZU4R2Y9A2N10文档编

8、码:CT4A5C9J3P7 HP8T1A1H10B4 ZU4R2Y9A2N10文档编码:CT4A5C9J3P7 HP8T1A1H10B4 ZU4R2Y9A2N10文档编码:CT4A5C9J3P7 HP8T1A1H10B4 ZU4R2Y9A2N10文档编码:CT4A5C9J3P7 HP8T1A1H10B4 ZU4R2Y9A2N10文档编码:CT4A5C9J3P7 HP8T1A1H10B4 ZU4R2Y9A2N10文档编码:CT4A5C9J3P7 HP8T1A1H10B4 ZU4R2Y9A2N10文档编码:CT4A5C9J3P7 HP8T1A1H10B4 ZU4R2Y9A2N10文档编码:CT4A

9、5C9J3P7 HP8T1A1H10B4 ZU4R2Y9A2N10文档编码:CT4A5C9J3P7 HP8T1A1H10B4 ZU4R2Y9A2N10文档编码:CT4A5C9J3P7 HP8T1A1H10B4 ZU4R2Y9A2N10文档编码:CT4A5C9J3P7 HP8T1A1H10B4 ZU4R2Y9A2N10文档编码:CT4A5C9J3P7 HP8T1A1H10B4 ZU4R2Y9A2N10文档编码:CT4A5C9J3P7 HP8T1A1H10B4 ZU4R2Y9A2N10文档编码:CT4A5C9J3P7 HP8T1A1H10B4 ZU4R2Y9A2N10文档编码:CT4A5C9J3P

10、7 HP8T1A1H10B4 ZU4R2Y9A2N10文档编码:CT4A5C9J3P7 HP8T1A1H10B4 ZU4R2Y9A2N10文档编码:CT4A5C9J3P7 HP8T1A1H10B4 ZU4R2Y9A2N10文档编码:CT4A5C9J3P7 HP8T1A1H10B4 ZU4R2Y9A2N10文档编码:CT4A5C9J3P7 HP8T1A1H10B4 ZU4R2Y9A2N10文档编码:CT4A5C9J3P7 HP8T1A1H10B4 ZU4R2Y9A2N10文档编码:CT4A5C9J3P7 HP8T1A1H10B4 ZU4R2Y9A2N10文档编码:CT4A5C9J3P7 HP8T

11、1A1H10B4 ZU4R2Y9A2N10文档编码:CT4A5C9J3P7 HP8T1A1H10B4 ZU4R2Y9A2N10文档编码:CT4A5C9J3P7 HP8T1A1H10B4 ZU4R2Y9A2N10文档编码:CT4A5C9J3P7 HP8T1A1H10B4 ZU4R2Y9A2N10文档编码:CT4A5C9J3P7 HP8T1A1H10B4 ZU4R2Y9A2N10文档编码:CT4A5C9J3P7 HP8T1A1H10B4 ZU4R2Y9A2N10文档编码:CT4A5C9J3P7 HP8T1A1H10B4 ZU4R2Y9A2N10文档编码:CT4A5C9J3P7 HP8T1A1H10

12、B4 ZU4R2Y9A2N10文档编码:CT4A5C9J3P7 HP8T1A1H10B4 ZU4R2Y9A2N10文档编码:CT4A5C9J3P7 HP8T1A1H10B4 ZU4R2Y9A2N10文档编码:CT4A5C9J3P7 HP8T1A1H10B4 ZU4R2Y9A2N102、已知一对外啮合渐开线标准直齿圆柱齿轮的标准中心距a=150mm，齿数 Z1=20，Z2=80，齿顶高系数 ha*=1，压力角=20。试求这对齿轮的模数m，传动比 i12，节圆直径及啮合角。(8 分)3、如下图所示轮系中，已知Z1=16，Z2=32，Z3=20，Z4=40，Z5=4，Z6=40，若 n1=800r/

13、min，求蜗轮的转速 n6及各轮的转向。（6 分）六、分析齿轮轴系上的错误结构，并改正。轴承采用油润滑。（8 分）机械设计基础试题二答案一、填空题（每空1 分，共 30 分）1、运动、制造、装配文档编码:CT4A5C9J3P7 HP8T1A1H10B4 ZU4R2Y9A2N10文档编码:CT4A5C9J3P7 HP8T1A1H10B4 ZU4R2Y9A2N10文档编码:CT4A5C9J3P7 HP8T1A1H10B4 ZU4R2Y9A2N10文档编码:CT4A5C9J3P7 HP8T1A1H10B4 ZU4R2Y9A2N10文档编码:CT4A5C9J3P7 HP8T1A1H10B4 ZU4R2

14、Y9A2N10文档编码:CT4A5C9J3P7 HP8T1A1H10B4 ZU4R2Y9A2N10文档编码:CT4A5C9J3P7 HP8T1A1H10B4 ZU4R2Y9A2N10文档编码:CT4A5C9J3P7 HP8T1A1H10B4 ZU4R2Y9A2N10文档编码:CT4A5C9J3P7 HP8T1A1H10B4 ZU4R2Y9A2N10文档编码:CT4A5C9J3P7 HP8T1A1H10B4 ZU4R2Y9A2N10文档编码:CT4A5C9J3P7 HP8T1A1H10B4 ZU4R2Y9A2N10文档编码:CT4A5C9J3P7 HP8T1A1H10B4 ZU4R2Y9A2N1

15、0文档编码:CT4A5C9J3P7 HP8T1A1H10B4 ZU4R2Y9A2N10文档编码:CT4A5C9J3P7 HP8T1A1H10B4 ZU4R2Y9A2N10文档编码:CT4A5C9J3P7 HP8T1A1H10B4 ZU4R2Y9A2N10文档编码:CT4A5C9J3P7 HP8T1A1H10B4 ZU4R2Y9A2N10文档编码:CT4A5C9J3P7 HP8T1A1H10B4 ZU4R2Y9A2N10文档编码:CT4A5C9J3P7 HP8T1A1H10B4 ZU4R2Y9A2N10文档编码:CT4A5C9J3P7 HP8T1A1H10B4 ZU4R2Y9A2N10文档编码:

16、CT4A5C9J3P7 HP8T1A1H10B4 ZU4R2Y9A2N10文档编码:CT4A5C9J3P7 HP8T1A1H10B4 ZU4R2Y9A2N10文档编码:CT4A5C9J3P7 HP8T1A1H10B4 ZU4R2Y9A2N10文档编码:CT4A5C9J3P7 HP8T1A1H10B4 ZU4R2Y9A2N10文档编码:CT4A5C9J3P7 HP8T1A1H10B4 ZU4R2Y9A2N10文档编码:CT4A5C9J3P7 HP8T1A1H10B4 ZU4R2Y9A2N10文档编码:CT4A5C9J3P7 HP8T1A1H10B4 ZU4R2Y9A2N10文档编码:CT4A5C

17、9J3P7 HP8T1A1H10B4 ZU4R2Y9A2N10文档编码:CT4A5C9J3P7 HP8T1A1H10B4 ZU4R2Y9A2N10文档编码:CT4A5C9J3P7 HP8T1A1H10B4 ZU4R2Y9A2N10文档编码:CT4A5C9J3P7 HP8T1A1H10B4 ZU4R2Y9A2N10文档编码:CT4A5C9J3P7 HP8T1A1H10B4 ZU4R2Y9A2N10文档编码:CT4A5C9J3P7 HP8T1A1H10B4 ZU4R2Y9A2N10文档编码:CT4A5C9J3P7 HP8T1A1H10B4 ZU4R2Y9A2N10文档编码:CT4A5C9J3P7

18、HP8T1A1H10B4 ZU4R2Y9A2N10文档编码:CT4A5C9J3P7 HP8T1A1H10B4 ZU4R2Y9A2N10文档编码:CT4A5C9J3P7 HP8T1A1H10B4 ZU4R2Y9A2N10文档编码:CT4A5C9J3P7 HP8T1A1H10B4 ZU4R2Y9A2N10文档编码:CT4A5C9J3P7 HP8T1A1H10B4 ZU4R2Y9A2N10文档编码:CT4A5C9J3P7 HP8T1A1H10B4 ZU4R2Y9A2N10文档编码:CT4A5C9J3P7 HP8T1A1H10B4 ZU4R2Y9A2N10文档编码:CT4A5C9J3P7 HP8T1A

19、1H10B4 ZU4R2Y9A2N10文档编码:CT4A5C9J3P7 HP8T1A1H10B4 ZU4R2Y9A2N10文档编码:CT4A5C9J3P7 HP8T1A1H10B4 ZU4R2Y9A2N10文档编码:CT4A5C9J3P7 HP8T1A1H10B4 ZU4R2Y9A2N10文档编码:CT4A5C9J3P7 HP8T1A1H10B4 ZU4R2Y9A2N10文档编码:CT4A5C9J3P7 HP8T1A1H10B4 ZU4R2Y9A2N10文档编码:CT4A5C9J3P7 HP8T1A1H10B4 ZU4R2Y9A2N10文档编码:CT4A5C9J3P7 HP8T1A1H10B4

20、 ZU4R2Y9A2N102、低副、高副、转动副、移动副3、定轴轮系、行星轮系4、1205、B、20、70 6、支承轴上的旋转零件，传递运动和转矩，心轴、转轴、传动轴7、机架、凸轮、从动件8、急回特性9、大10、齿根、齿顶、从动轮齿顶圆、齿顶、齿根、主动轮齿顶圆11、基孔制、基轴制二、判断题（每小题1 分，共 10 分）1、2、3、4、5、6、7、8、9、10、三、单项选择题（每小题2 分，共 20 分）1、B 2、B 3、C 4、A 5、A 6、C 7、A 8、C 9、A 10、C 四、简答题（每题3 分，共 12 分）1、简述齿廓啮合的基本定律。不论齿廓在任何位置接触，过接触点所做的公法线

21、一定通过连心线上一定点，才能保证传动比恒定不变。2、螺栓连接、双头螺柱连接、螺钉连接、紧定螺钉连接。螺栓连接用于被连接件不厚、通孔且经常拆卸的场合；双头螺柱连接用于被连接件之一较厚、盲孔且经常拆卸的场合；螺钉连接用于被连接件之一较厚、盲孔且不经常拆卸的场合。3、周向固定：键连接、花键连接、过盈配合连接轴向固定：轴肩、轴环、轴套、轴端挡板、弹性档圈4、说明带的弹性滑动与打滑的区别弹性滑动是由于带传动时的拉力差引起的，只要传递圆周力，就存在着拉力差，所以弹性滑动是不可避免的；而打滑是由于过载引起的，只要不过载，就可以避免打滑，所以，打文档编码:CT4A5C9J3P7 HP8T1A1H10B4 ZU

22、4R2Y9A2N10文档编码:CT4A5C9J3P7 HP8T1A1H10B4 ZU4R2Y9A2N10文档编码:CT4A5C9J3P7 HP8T1A1H10B4 ZU4R2Y9A2N10文档编码:CT4A5C9J3P7 HP8T1A1H10B4 ZU4R2Y9A2N10文档编码:CT4A5C9J3P7 HP8T1A1H10B4 ZU4R2Y9A2N10文档编码:CT4A5C9J3P7 HP8T1A1H10B4 ZU4R2Y9A2N10文档编码:CT4A5C9J3P7 HP8T1A1H10B4 ZU4R2Y9A2N10文档编码:CT4A5C9J3P7 HP8T1A1H10B4 ZU4R2Y9A

23、2N10文档编码:CT4A5C9J3P7 HP8T1A1H10B4 ZU4R2Y9A2N10文档编码:CT4A5C9J3P7 HP8T1A1H10B4 ZU4R2Y9A2N10文档编码:CT4A5C9J3P7 HP8T1A1H10B4 ZU4R2Y9A2N10文档编码:CT4A5C9J3P7 HP8T1A1H10B4 ZU4R2Y9A2N10文档编码:CT4A5C9J3P7 HP8T1A1H10B4 ZU4R2Y9A2N10文档编码:CT4A5C9J3P7 HP8T1A1H10B4 ZU4R2Y9A2N10文档编码:CT4A5C9J3P7 HP8T1A1H10B4 ZU4R2Y9A2N10文档

24、编码:CT4A5C9J3P7 HP8T1A1H10B4 ZU4R2Y9A2N10文档编码:CT4A5C9J3P7 HP8T1A1H10B4 ZU4R2Y9A2N10文档编码:CT4A5C9J3P7 HP8T1A1H10B4 ZU4R2Y9A2N10文档编码:CT4A5C9J3P7 HP8T1A1H10B4 ZU4R2Y9A2N10文档编码:CT4A5C9J3P7 HP8T1A1H10B4 ZU4R2Y9A2N10文档编码:CT4A5C9J3P7 HP8T1A1H10B4 ZU4R2Y9A2N10文档编码:CT4A5C9J3P7 HP8T1A1H10B4 ZU4R2Y9A2N10文档编码:CT4

25、A5C9J3P7 HP8T1A1H10B4 ZU4R2Y9A2N10文档编码:CT4A5C9J3P7 HP8T1A1H10B4 ZU4R2Y9A2N10文档编码:CT4A5C9J3P7 HP8T1A1H10B4 ZU4R2Y9A2N10文档编码:CT4A5C9J3P7 HP8T1A1H10B4 ZU4R2Y9A2N10文档编码:CT4A5C9J3P7 HP8T1A1H10B4 ZU4R2Y9A2N10文档编码:CT4A5C9J3P7 HP8T1A1H10B4 ZU4R2Y9A2N10文档编码:CT4A5C9J3P7 HP8T1A1H10B4 ZU4R2Y9A2N10文档编码:CT4A5C9J3

26、P7 HP8T1A1H10B4 ZU4R2Y9A2N10文档编码:CT4A5C9J3P7 HP8T1A1H10B4 ZU4R2Y9A2N10文档编码:CT4A5C9J3P7 HP8T1A1H10B4 ZU4R2Y9A2N10文档编码:CT4A5C9J3P7 HP8T1A1H10B4 ZU4R2Y9A2N10文档编码:CT4A5C9J3P7 HP8T1A1H10B4 ZU4R2Y9A2N10文档编码:CT4A5C9J3P7 HP8T1A1H10B4 ZU4R2Y9A2N10文档编码:CT4A5C9J3P7 HP8T1A1H10B4 ZU4R2Y9A2N10文档编码:CT4A5C9J3P7 HP8

27、T1A1H10B4 ZU4R2Y9A2N10文档编码:CT4A5C9J3P7 HP8T1A1H10B4 ZU4R2Y9A2N10文档编码:CT4A5C9J3P7 HP8T1A1H10B4 ZU4R2Y9A2N10文档编码:CT4A5C9J3P7 HP8T1A1H10B4 ZU4R2Y9A2N10文档编码:CT4A5C9J3P7 HP8T1A1H10B4 ZU4R2Y9A2N10文档编码:CT4A5C9J3P7 HP8T1A1H10B4 ZU4R2Y9A2N10文档编码:CT4A5C9J3P7 HP8T1A1H10B4 ZU4R2Y9A2N10文档编码:CT4A5C9J3P7 HP8T1A1H1

28、0B4 ZU4R2Y9A2N10文档编码:CT4A5C9J3P7 HP8T1A1H10B4 ZU4R2Y9A2N10文档编码:CT4A5C9J3P7 HP8T1A1H10B4 ZU4R2Y9A2N10文档编码:CT4A5C9J3P7 HP8T1A1H10B4 ZU4R2Y9A2N10文档编码:CT4A5C9J3P7 HP8T1A1H10B4 ZU4R2Y9A2N10滑是可以避免的。五、计算题（第一题6 分，第二题8 分，第三题6 分，共 20 分）1、解：机构具有确定相对运动的条件是：机构的自由度数等于机构中接受外界给定运动规律的原动件的个数。n=3，PL=3，PH2 机构自由度 F 3n2P

29、LPH 1，因为 W 1 F，所以机构的运动确定。2、解：节圆直径=分度圆直径3、解：六、分析题（8 分）文档编码:CT4A5C9J3P7 HP8T1A1H10B4 ZU4R2Y9A2N10文档编码:CT4A5C9J3P7 HP8T1A1H10B4 ZU4R2Y9A2N10文档编码:CT4A5C9J3P7 HP8T1A1H10B4 ZU4R2Y9A2N10文档编码:CT4A5C9J3P7 HP8T1A1H10B4 ZU4R2Y9A2N10文档编码:CT4A5C9J3P7 HP8T1A1H10B4 ZU4R2Y9A2N10文档编码:CT4A5C9J3P7 HP8T1A1H10B4 ZU4R2Y9

30、A2N10文档编码:CT4A5C9J3P7 HP8T1A1H10B4 ZU4R2Y9A2N10文档编码:CT4A5C9J3P7 HP8T1A1H10B4 ZU4R2Y9A2N10文档编码:CT4A5C9J3P7 HP8T1A1H10B4 ZU4R2Y9A2N10文档编码:CT4A5C9J3P7 HP8T1A1H10B4 ZU4R2Y9A2N10文档编码:CT4A5C9J3P7 HP8T1A1H10B4 ZU4R2Y9A2N10文档编码:CT4A5C9J3P7 HP8T1A1H10B4 ZU4R2Y9A2N10文档编码:CT4A5C9J3P7 HP8T1A1H10B4 ZU4R2Y9A2N10文

31、档编码:CT4A5C9J3P7 HP8T1A1H10B4 ZU4R2Y9A2N10文档编码:CT4A5C9J3P7 HP8T1A1H10B4 ZU4R2Y9A2N10文档编码:CT4A5C9J3P7 HP8T1A1H10B4 ZU4R2Y9A2N10文档编码:CT4A5C9J3P7 HP8T1A1H10B4 ZU4R2Y9A2N10文档编码:CT4A5C9J3P7 HP8T1A1H10B4 ZU4R2Y9A2N10文档编码:CT4A5C9J3P7 HP8T1A1H10B4 ZU4R2Y9A2N10文档编码:CT4A5C9J3P7 HP8T1A1H10B4 ZU4R2Y9A2N10文档编码:CT

32、4A5C9J3P7 HP8T1A1H10B4 ZU4R2Y9A2N10文档编码:CT4A5C9J3P7 HP8T1A1H10B4 ZU4R2Y9A2N10文档编码:CT4A5C9J3P7 HP8T1A1H10B4 ZU4R2Y9A2N10文档编码:CT4A5C9J3P7 HP8T1A1H10B4 ZU4R2Y9A2N10文档编码:CT4A5C9J3P7 HP8T1A1H10B4 ZU4R2Y9A2N10文档编码:CT4A5C9J3P7 HP8T1A1H10B4 ZU4R2Y9A2N10文档编码:CT4A5C9J3P7 HP8T1A1H10B4 ZU4R2Y9A2N10文档编码:CT4A5C9J

33、3P7 HP8T1A1H10B4 ZU4R2Y9A2N10文档编码:CT4A5C9J3P7 HP8T1A1H10B4 ZU4R2Y9A2N10文档编码:CT4A5C9J3P7 HP8T1A1H10B4 ZU4R2Y9A2N10文档编码:CT4A5C9J3P7 HP8T1A1H10B4 ZU4R2Y9A2N10文档编码:CT4A5C9J3P7 HP8T1A1H10B4 ZU4R2Y9A2N10文档编码:CT4A5C9J3P7 HP8T1A1H10B4 ZU4R2Y9A2N10文档编码:CT4A5C9J3P7 HP8T1A1H10B4 ZU4R2Y9A2N10文档编码:CT4A5C9J3P7 HP

34、8T1A1H10B4 ZU4R2Y9A2N10文档编码:CT4A5C9J3P7 HP8T1A1H10B4 ZU4R2Y9A2N10文档编码:CT4A5C9J3P7 HP8T1A1H10B4 ZU4R2Y9A2N10文档编码:CT4A5C9J3P7 HP8T1A1H10B4 ZU4R2Y9A2N10文档编码:CT4A5C9J3P7 HP8T1A1H10B4 ZU4R2Y9A2N10文档编码:CT4A5C9J3P7 HP8T1A1H10B4 ZU4R2Y9A2N10文档编码:CT4A5C9J3P7 HP8T1A1H10B4 ZU4R2Y9A2N10文档编码:CT4A5C9J3P7 HP8T1A1H10B4 ZU4R2Y9A2N10文档编码:CT4A5C9J3P7 HP8T1A1H10B4 ZU4R2Y9A2N10文档编码:CT4A5C9J3P7 HP8T1A1H10B4 ZU4R2Y9A2N10文档编码:CT4A5C9J3P7 HP8T1A1H10B4 ZU4R2Y9A2N10文档编码:CT4A5C9J3P7 HP8T1A1H10B4 ZU4R2Y9A2N10文档编码:CT4A5C9J3P7 HP8T1A1H10B4 ZU4R2Y9A2N10文档编码:CT4A5C9J3P7 HP8T1A1H10B4 ZU4R2Y9A2N10

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